AMSOIL XL Extended Life Synthetic Motor Oil is designed to provide
better wear control, improved high- and low-temperature protection and
increased fuel economy compared to conventional oils. AMSOIL XL
Synthetic Motor Oil is formulated with extended-drain boost technology.
It provides superior performance for up to 10,000-miles/six months, or
longer when recommended in owners’ manuals or indicated by electronic
oil life monitoring systems.

AMSOIL, the leader in automotive synthetic lubrication, produced the
world’s first API-qualified synthetic motor oil in 1972. Trust the extensive
experience of AMSOIL, the First in Synthetics®, to do the best job
protecting your engine.

Extended-Drain Boost Technology
During normal engine operation, the combustion process
creates acidic by-products that can lead to internal component
corrosion and a reduction in the life expectancy of the engine
oil and engine itself. AMSOIL XL Synthetic Motor Oil is
formulated with extended-drain boost technology. It employs
high-quality synthetic base stocks and a unique additive
chemistry to neutralize acids longer than conventional oils. The
extra additive package effectively raises the total base number
(TBN), a measure of an oil's useful service life, and provides
superior protection and performance throughout the entire
drain interval.

Protects in All Temperatures
AMSOIL XL is a multi-viscosity formulation. It resists the effects
of thermal breakdown, including evaporation and viscosity loss,
while remaining fluid in cold temperatures for easy cold starts
and fast startup circulation.

COMPATIBILITY
AMSOIL XL Synthetic Motor Oil is compatible with conventional
and other synthetic motor oils. Mixing AMSOIL XL Synthetic
Motor Oil with other oils, however, will shorten the oil's life
expectancy and reduce the performance benefits. AMSOIL
does not support extended drain intervals where oils have
been mixed.

Aftermarket
oil additives are not recommended for
use with AMSOIL XL Synthetic Motor Oil.

SERVICE LIFE
In gasoline-fueled vehicles, AMSOIL XL Synthetic Motor Oil
is recommended for up to 10,000-mile/six-month oil change
intervals or longer when recommended in owner’s manuals
or indicated by electronic oil life monitoring systems. Change
aftermarket, original equipment manufacturer or AMSOIL Ea®
Oil Filter at every oil change.

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended
application and according to the recommendations in the Material
Safety Data Sheet (MSDS). USA and Canada (M)SDS are available upon request at 715-392-7101 or on the AMSOIL Website. Keep Out of Reach of Children. Don’t pollute.
Return used oil to collection centers.

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I started using the longer interval synthetic oil recently and did notice my gas mileage improved along with the engine running very smooth. I have to admit at first I was not sure Amsoil...Read complete review

I started using the longer interval synthetic oil recently and did notice my gas mileage improved along with the engine running very smooth. I have to admit at first I was not sure Amsoil was able to produce a oil that could go for 10,000 miles and beyond. I took the plunge into using a longer time interval change for my car. Amsoil is a company that has dedicated probably countless hours of coming up with a synthetic that can in the real world condition do this. I have taken care of every car I've own since I want them to last me a long time. When the most recent oil change was done I was very impressed on how good the oil looked after. I recommend this oil to all my friends but some you can convince and some remain sceptable. As they say you can lead a horse to water. So I cleaned the throttle body, changed the oil and entered into my maintenance log. If you are on the fence about trying their products, trust me. Become a yearly member and you probably will not go back to whatever oil you were using. I feel Amsoil needs to keep their prices lower for members as they have done so that more people will be able to switch over without question. Cost will always be the factor on if the consumer will give the product a try. I think free shipping, reward points and sales would give existing members to purchase more in advance. Thank you to the entire Amsoil team for their commitment to protecting our engines.

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I recently switched to this oil in my 4.6L f150. This truck has 106,100 miles on it. It's had motorcraft synthetic blend changed every 3k-5k miles with a fl-820 filter since...Read complete review

I recently switched to this oil in my 4.6L f150. This truck has 106,100 miles on it. It's had motorcraft synthetic blend changed every 3k-5k miles with a fl-820 filter since new. Immediately after switching to this oil the engine developed some cold start and low RPM knocking. I believe this is due to the timing chain tensioners and or guides? The tensioners rely on oil pressure to keep the chains tensioned. So either the motorcraft was hiding a mechanical issue or this 5w20 isn't of similar viscosity to the motorcraft? Oil sample will be sent to blackstone at 3k miles. Still using the motorcraft fl-820 filter with this product. I cannot recommend this product until I have more info.

I started using synthetic oil in the late 90s after observing the inside of gearboxes that used regular gear oil compared to the ones that had been switched to synthetic. The difference was astonishing. I started with Mobil 1 and I have used various brands but none can compare to the quality and reliability of Amsoil. I started using Amsoil on my new 2007 Camry which my son has now and then on my new 2011 Camry. On the 2011 I have changed the transmission fluid with your premium fluid. (Even though it is supposedly lifetime fluid) My 2011 Camry now has 174,000 miles and it still runs and shifts like new. The 2007 has over 200,000 miles and runs great. I bought a used 2004 Silverado with 84,000 miles and switched it over to Amsoil. After about 500 miles I noticed that my oil pressure had dropped by almost 50 percent. I drained the oil and pulled the filter and a thick slime was in the filter and in the oil. It took 2 more oil and filter changes but eventually your product cleared out all the built-up sludge from the engine. My oil pressure increased even more and has remained steady ever since. Fantastic product.

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